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  • CAA iodef clarification

    From rams@bramesh80@gmail.com to bind-users on Tue May 12 14:59:09 2020
    From Newsgroup: comp.protocols.dns.bind

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    Hi

    On the CAA record iodef filed, do we force this to be unique or can it
    match a CNAME?


    Thanks,

    Ramesh

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    <div dir=3D"ltr"><p class=3D"MsoNormal" style=3D"margin:0in 0in 0.0001pt;fo= nt-size:11pt;font-family:Calibri,sans-serif"><span lang=3D"EN-GB">Hi=C2=A0<= /span></p><p class=3D"MsoNormal" style=3D"margin:0in 0in 0.0001pt;font-size= :11pt;font-family:Calibri,sans-serif"><span style=3D"font-size:11pt">On the=
    CAA record iodef filed, do we force this to be unique or can it
    match a CNAME?=C2=A0 </span></p><p class=3D"MsoNormal" style=3D"margin:0in = 0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style=3D"= font-size:11pt"><br></span></p><p class=3D"MsoNormal" style=3D"margin:0in 0=
    in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style=3D"f= ont-size:11pt">Thanks,</span></p><p class=3D"MsoNormal" style=3D"margin:0in=
    0in 0.0001pt;font-size:11pt;font-family:Calibri,sans-serif"><span style=3D= "font-size:11pt">Ramesh</span></p>

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  • From Tony Finch@dot@dotat.at to rams on Thu May 14 18:54:02 2020
    From Newsgroup: comp.protocols.dns.bind

    rams <bramesh80@gmail.com> wrote:

    On the CAA record iodef filed, do we force this to be unique or can it
    match a CNAME?

    The specification says the iodef field contains a URL so normal URL
    resolution applies.

    https://tools.ietf.org/html/rfc8659#section-4.4

    Questions about CNAMEs are at the wrong layer. HTTP URLs can refer to
    CNAMEs; email addresses only use CNAMEs if you like tackling
    interoperability problems dating from the 1980s.

    Tony.
    --
    f.anthony.n.finch <dot@dotat.at> http://dotat.at/
    South Utsire, Forties, Cromarty: Westerly 4 to 6, increasing 7 at times in north Forties and South Utsire. Slight or moderate in west Cromarty, otherwise moderate occasionally rough. Showers. Mainly good.
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